initial check-in, version 0.5.0v0.5.0

1 files changed, 15 insertions, 0 deletions

diff --git a/src/signal/setitimer.c b/src/signal/setitimer.c
new file mode 100644
index 0000000..cacab03
--- /dev/null
+++ b/src/signal/setitimer.c
@@ -0,0 +1,15 @@
+#include <sys/time.h>
+#include "syscall.h"
+
+int setitimer(int which, const struct itimerval *new, struct itimerval *old)
+{
+	int ret;
+	long knew[4] = {
+		new->it_interval.tv_sec, new->it_interval.tv_usec,
+		new->it_value.tv_sec, new->it_value.tv_usec
+	}, kold[4];
+
+	if (!(ret = syscall3(__NR_setitimer, which, (long)&knew, old ? (long)&kold : 0)) && old)
+		*old = (struct itimerval){ { kold[0], kold[1] }, { kold[2], kold[3] } };
+	return ret;
+}